Nut-lock.



J. H. LB COMPTE.

NUT LOOK.

APPLICATION FILED SEPT.9. 1913.

1,1 20,393. Patented Dec. 8, 1914.

UNITED STATES PATENT OFFICE.

JOSEPH I-I. LE COMPTE, OF MAYWOOD, ILLINOIS, ASSIGNOR OF ONE-HALF TO GORI-IAM G. VARNEY, FIVE ONE-HUNDREDTHS TO EDWARD KOWALESKI, AND TEN ONE- HUNREDTHS T0 MARTIN M. HEISLER, ALL OF CHICAGO, ILLINOIS.

NUT-LOCK.

Application filed September 9, 1913.

To all whom it may concern Be it known that I, JOSEPH H. Ln COMPTE, a citizen of the United States, and a resident of the town of Maywood, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Nut-Locks; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the numerals of reference marked thereon, which form a part of this specification.

lVherever bolts are subjected to vibration, it has proven difiicult to maintain the nuts thereon adequately tight, such vibration .tending to gradually rotate the nut and loosen the bolt. Because of this, many different types of nut locks have been devised, most of which are expensive to construct and install and to maintain in order, and some of which are difficult of application.

The object of this invention is to so secure a nut on a bolt as to maintain the same tight at all times.

It is also an object of this invention to apply a resilient nut lock to an ordinary nut and bolt to set the nut up on the bolt when vibration occurs.

The invention is capable of adaptation in and bolt. Fig. at is a view similar to Fig.

2, but illustrates the application of the device to a hexagonal nut.

As shown in the drawings: 1, indicates a splice bolt and 2, the nut thereon. 3, indicates a jam nut. The threaded end of the bolt, as shown, is provided with an aperture in the side thereof. The resilient locking means comprises a coiled spring 4, consisting of one or more turns of spring wire of Specification of Letters Patent.

Patented Dec. 8, 1914.

SerialNo. 788,947.

suitable gage, one end 5, of which is bent transversely of the axis of the coil for engagement in the aperture in the bolt, and

the other end 6, of which is bent or shaped to engage around the nut to be secured in place. If to be applied on an ordinary square nut, said end portion of the spring is bent to conform to the four sides of the nut, as illustrated in Figs. 1 to 3 inclusive; if to a hexagonal nut, said end of the spring is bent accordingly, as illustrated in Fig. 4. Preferably,the extremity of said end is provided with a loop or eye 7, to close the loop larged portion of the spring over the nut.

Before engaging the nut, the spring is wound upon the bolt sufliciently to afford some tension, the draft of the spring being in a direction to thread the nut upon the bolt, as illustrated in Fig. 1. Any vibration of the bolt capable of efiecting any movement whatever of the nut relative the bolt, causes the nut to thread onto the bolt, with the effect of constantly tightening the nut and maintaining at all times a very positive and secure engagement.

Of course, various details of the construction and application of said device may be modified, and it is to be understood that I do not purpose limiting the patent otherwise than necessitated by the appended claims. I

, I claim as my invention:

1. A nut locking device embracing a coiled spring, a bolt having an aperture therein, one end of said spring adapted to be engaged within the aperture of the bolt, said spring wound to correspond with and lie between the threads of said bolt, and the other end formed to afford a closed loop, In testimony whereof I have hereunto adapted to conform to the outer surface of subscribed my name, in the presence of two 10 a nut. 1 f b d subscribing Witnesses.

2. In a cevice o the class descri e a coiled spring having one end bent trans- I l versely of the axis of the same and the other \Vitnesses: H V end bent or shaped to afiord a relatively CHARLES W. H LLS, Jr., largeclosed loop. v LEON M.- REIBSTEIN.

Copies oi this patent maybe obtained for five cents each, by addressing the "Goinniissioner of Patents,

Washington, D. C. 

